Getting a parts list for some maintenance on my low millage 83 H/O. A while back someone here suggested to swap out the plastic factory timing set with a steel one. I don't need a double roller. So wondering which single one is preferred? Cloyes? Melling? Sealed Power? I remember talking to Joe Mondelo years ago and he talked about some are not up to specs in regards to TDC. Rock Auto has them for around $20.